If there's one thing Americans like, it's a special deal.

And if there's something they like even more, it's a special deal that lets them get one over on someone and fee like they're in on a secret joke. 

Ladies and gentlemen, I give you: the new deal from Burger King that lets you buy a Whopper for $.01, but only if you first join them in trolling McDonalds. 

Starting with a cryptic tweet Tuesday ("brb going to McDonald's"), the nation's number-two burger chain teased its promotion, before announcing at 10 am that it's giving Whoppers away for a penny until Dec 12, provided you do two things:

  1. Order using the new Burger King mobile app,
  2. Order your Burger King meal while you're physically at a McDonalds

The nations number-2 burger chain released a video showing people actually ordering while they're at a McDonalds drive through, but technically you don't have to be that close. Six hundred feet from your local McD's will do. 

As BK explained in a press release:

"If a guest is inside one of these geofenced areas and has the new BK App on their device, the app will unlock the Whopper sandwich for a penny promotion. 

Once the 1¢ Whopper sandwich order is placed, the user will be 'detoured' away from McDonald's, as the app navigates them to the nearest Burger King restaurant for pick up."

Like many of the promotions we've seen lately -- say the McDonald's Gold Card or the free Starbucks for life contest -- BK's goal seems squarely focused on getting people to download its app. 

But on sheer creativity and mischievousness, I think they come out ahead of other promotions.

We will probably never know what they wind up doing in terms of number of app downloads, but having run a lot of campaigns like this, I can imagine this will turn out to be a very efficient promotion. 

More than that -- the novelty could likely bring in people who never eat at Bk or mcd. Like me for example. 

Which gives me an idea--and maybe a way to update this story in a little while.